A new race of Pseudomonas glycinea [and the pathogenic response of seven soybean cultivars to it].

Reference Report for IND80059248

Title:	A new race of Pseudomonas glycinea [and the pathogenic response of seven soybean cultivars to it].
Authors:	Thomas, M.D., Leary, J.V.
Source:	Phytopath. 1980, 70(4):310-312
Abstract:	An Australian isolate of Ps. glycinea, designated PgB3, induced a hypersensitive resistant response on seedlings of Lindarin soya bean and an intermediate response on each of the cultivars Acme, Flambeau, Harosoy, Merit, Norchief and Chippewa. Since none of the seven races described previously gave a similar response to PgB3, the isolate is considered to represent a new race, race 8. Five other Australian isolates have been referred to race 8. Classification of the eight races on the basis of nutrient utilization or pigment production was found to be unreliable owing to the mutability of genes determining these characteristics. ADDITIONAL ABSTRACT: The reaction of 7 soybean cvs. to the race is reported. Similarities to selected characteristics of the 7 previously described races, specifically pigment production and xylose utilization, were studied. The value of relying on nutritional tests for bacterial spp. differentiation was considered, since mutants of the new race which mimic some of the other races were isolated. A convention for the use of biochemical tests was proposed.

Funded by the USDA-ARS. Developed by the USDA-ARS SoyBase and Legume Clade Database group at the Iowa State University, Ames, IA

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